Early earthquake detection apparatus and method
US11543547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2021 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Feb 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An early earthquake detection method may comprise acquiring a frame image from a camera; acquiring a vibration signal from the frame image; removing a noise signal due to vibration of the camera from the vibration signal; acquiring a motion signal obtained by magnifying subtle motions from the noise signal-removed vibration signal; extracting vibration characteristics from the motion signal; estimating an occurrence of an earthquake by extracting a peak signal from the vibration characteristics; and determining whether an earthquake occurs by receiving earthquake estimation information from at least one other camera located within a certain range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.